The principle used in a musket was just like the principle behind cannon which is why muskets were also called mini canons. As it was difficult for a soldier to measure the amount of powder to be poured down the barrel, it was supplied in a pre-measured pouch that had to be torn apart by the soldier before every shot.
The approx distance between Heathrow and Gatwick in a straight line is 24 miles or 38.62 KMS See the maps and links below for additional information related to driving distances, fuel costs and estimated journey times for this trip from Heathrow to Gatwick.Happy trails!!pprox distance in miles from Heathrow to Gatwick is 24 miles or 38.62 KMS. This page was designed to give you a good indication of the distance from Heathrow to Gatwick.
Heathrow Airport is located about 20 miles west of central London  and Gatwick Airport is located about 30 miles south of central  London.Both airports have excellent trans â¦ port connections to  central London.he City of London is a small portion of the metropolitan region of London, which is located in England, in the United Kingdom. There are also many other cities and towns arou â¦ nd the world that are called London because they were settled by or built by people from England.